Pliers.



H. R. GIRVES.

PLIERS.

APPLIOATIOI 211.111) JUNE 2, 1910.

Patented 0011.25, 1910.

Inventor.- Her/77a); 1?, c kygs UNITED STATES PATENT OFFICE.

he iaesuqa of team retest. Anima ion fli d Ju 2.- mo. mm in. 4M2- Patented Oct. 25, 1910.

To all it my p Be it known that I, Heisman R. Graves, a citizen of the U111 ed States, residin at Madison, county of Qane, and State of is.- consin, have invented certain new and useful Improvements in Pliers, of which the following is a specification.

My invention relates to improvements for pliers especially adapted for the asset elec-. tricians in skinning or removingthe insulation from electric wires.

The object of the invention is to provide a pair of p iers of the nature set forth which shall be of simple construction and efiiclent in o ration.

T 1e invention consists in the combination and arran ement of .parts hereinafter described ang claimed.

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and in which Figure 1 is a partial plan viewof pliers embodyi my invention, Fig. 2, a side elevation of ig. 1, Fig. 3, an end elevation of Fig. 1, Fig. 4, a partial plan view of one of the jaw-members'of'the pliers, Fig. 5, an elevation of Fig. 1, Fi 6, a plan view of one of the cutting bla es employed on the pliers, Fig. 7, a partial plan view of a mjodi fied form of construction, and Fig. 8, an end view corresponding to Fig.7.

The preferred form ofoonstruction as illustrated in the drawings comprises a pair of plier jaws 1 pivoted to ther at 2 and provided with operating andles 3. 'A pair of cutting blades 4 having angular cutting edges 5 is secured to each side of jaws 1 in osition to e brace. an insulated wire 6 as indicated in ig. 1. Each of the blades 4 is slidably secured in position by means of screws 7 taken throu h elon ated slots 8 in said blades. Each 0 said lades is yieldingly pressed to contact with a wire between sa1d 'aws by means of flat steel springs 9 secured to the backs of said jaws at their centers by means of screws 10 having their free ends en aging notches 11 in the outer edges of said lades. Each of the jaws 1 is provided on its inner face with lon tudinal splitting edges 12 extending the fu 1 height of said aws and from one pair of said blades to the other. Jaws 1 are also provided with wire cutting pro'ections 13 g means of which wires may out OK an one of the handles 3 is provided with a set screw 14 adapted to with the other handle 3 and limit the a ,"rojach of said handles and conse uently 0 said jaws. By this construction it will be Qli SIYed that an insulated wire may be placed between angular cutting edges 5 and slit edges 7 and the insulation thereon cut and readily removed by pressing said jaws together and turning the pliers relative y to the wire. By means of set screw 14 the approach of jaws 1 may be adjusted to different sizes of wires so as to prevent injury or cuttin of said wires, a result which is facilitated yyielding of blades 4 when in use.

In Fi 7 and 8 I have illustrated a slightly ifierent form of construction emloying a slightl difierent sha e of cutting lade 4;"and slig tly difierent s ape of jaws 1 having se arate longitudinal splitting edges 12' tte to grooves in said jaws. Otherwise the two constructions are identical.

While I have illustrated and described the preferred form of construction for carrying my invention into effect this is capable of variation or modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the exact within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination with a pair of pliers, of angular cutting blades slidably secured to the jaws of sa1d pliers and adapted to yieldingly embrace aninsula-ted wire; and s rings arranged to yieldingly ress said b ades to contact with a wire, su stantially as described.

2. The combination with a pair of pliers, of angular cutting blades slidably secured to the jaws of sa1d pliers and adapted to yieldingly embrace an insulated wire; springs arranged to yieldingly press said blades to contact with a wire; and longitudinal splitting edges on the inner faces of said jaws, substantially as described.

3. The combination with a air of pliers, of a pair of angular cutting b ades slidably and adapted to yieldingly embrace an insulated wire; springs arranged to yieldingly press said blades to contact with a wire; longitudinal splitting edges on the inner faces of said jaws extending from one pair of said secured to each side of the jaws of said pliers blades to the other; and a set screw arranged to limit the a proach of said jaws, substantially as descri d.

4. The combination with a air of liers, of a pair of angular cuttin b ades shdably secured to each side of t e jaws of said pliers and adapted to yieldingly embrace an lnsulated wire; ingly ress said to contact with a wire; ongitudinal splitting edges on the inner faces of said jaws extending from one s rin arran ed to ieldhlad e s g y I pair of said blades to the other; a set screw arranged to limit the approach of said jaws; and wire cuttin edges on said plier jaws, substantially as escribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERMAN R. CIRVES.

Witn:

A. J. Bmmzm, F. A. Anamson. 

